Chapter 8 Basic Setting

Table 11

Basic Setting > Switch Setup (continued)

LABEL

 

DESCRIPTION

Leave All

 

Leave All Timer sets the duration of the Leave All Period timer for GVRP in

Timer

 

milliseconds. Each port has a single Leave All Period timer. Leave All

 

 

Timer must be larger than Leave Timer.

 

 

Priority Queue Assignment

IEEE 802.1p defines up to eight separate traffic types by inserting a tag into a MAC-layer

frame that contains bits to define class of service. Frames without an explicit priority tag

are given the default priority of the ingress port. Use the next fields to configure the

priority level-to-physical queue mapping.

The Switch has eight physical queues that you can map to the 8 priority levels. On the

Switch, traffic assigned to higher index queues gets through faster while traffic in lower

index queues is dropped if the network is congested.

 

Priority Level (The following descriptions are based on the traffic types defined in the IEEE

802.1d standard (which incorporates the 802.1p).

 

 

 

Level 7

 

Typically used for network control traffic such as router configuration

 

 

messages.

 

 

 

Level 6

 

Typically used for voice traffic that is especially sensitive to jitter (jitter is

 

 

the variations in delay).

 

 

 

Level 5

 

Typically used for video that consumes high bandwidth and is sensitive to

 

 

jitter.

 

 

 

Level 4

 

Typically used for controlled load, latency-sensitive traffic such as SNA

 

 

(Systems Network Architecture) transactions.

 

 

 

Level 3

 

Typically used for “excellent effort” or better than best effort and would

 

 

include important business traffic that can tolerate some delay.

 

 

 

Level 2

 

This is for “spare bandwidth”.

 

 

 

Level 1

 

This is typically used for non-critical “background” traffic such as bulk

 

 

transfers that are allowed but that should not affect other applications

 

 

and users.

 

 

 

Level 0

 

Typically used for best-effort traffic.

 

 

 

Apply

 

Click Apply to save your changes to the Switch’s run-time memory. The

 

 

Switch loses these changes if it is turned off or loses power, so use the

 

 

Save link on the top navigation panel to save your changes to the non-

 

 

volatile memory when you are done configuring.

 

 

 

Cancel

 

Click Cancel to reset the fields.

 

 

 

8.6 IP Setup

Use the IP Setup screen to configure the Switch IP address, default gateway device, the default domain name server and the management VLAN ID. The default gateway specifies the IP address of the default gateway (next hop) for outgoing traffic.

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GS2200-24 User’s Guide